188 RHYNCHOPHORA. 
b°. Rostrum subparallel-sided anteriorly (as seen from above). 
a’, Prothorax and elytra variegate; head small . . . maculicollis. 
}*°. Prothorax vittate down middle, elytra maculate ; head 
larger . . . - 2. 2. . . . fasciatus, undatus, vitticolls. 
. Prothorax and elytra albo-squamose, elytra obsoletely 
maculate . . 1. 1. 2 ee et ew we wee mle. 
d'°, Prothorax and elytra sublineate . . . . . . . sublineatus. 
b°. Anterior tibie strongly sinuate; elytra maculate . . . sinuatipes. 
b’. Elytra with long hairs on suture near apexin @? . . . . ciliatipennis. 
c’. Elytra with stout scattered suberect sete; head small ; an- 
terior tibie sinuate . . . ee 6 ee .) microcephalus. 
f°. Prothorax feebly constricted laterally at base : elytra without 
curled hairs, densely, uniformly albo-squamose, the humeri 
oblique . . 2... . woe ee ww we albisquamis. 
. Prothorax oblong, feebly constricted at t base. 
Ye . Elytra faintly maculate, the suture nodose and abruptly 
declivous posteriorly, the humeri oblique . . . . . «. . nodifer. 
n°. Elytra uniformly squamose, immaculate, the suture declivous 
posteriorly, the humeri rounded . . . . . © + «+ « longicollis. 
1. Pandeleteius erubescens, sp.n. (Tab. VII. fig. 35, 2.) 
Elongate, piceous, the antenns {the club excepted) and tarsi more or less ferruginous ; densely clothed above 
with intermixed golden-green and blue scintillating scales, the head and rostrum, the margins of the 
prothorax narrowly, the base and apex of the elytra, and a transverse subtriangular patch on the outer 
half of the disc just beyond the middle, the legs, and under surface cupreous, the scales beneath whitish 
in one specimen ; the surface also set with minute, scattered, decumbent, hair-like scales, those on the 
elytra uniseriately arranged down each interstice. Head and rostrum about as long as the prothorax, 
the rostrum deeply emarginate at the tip, canaliculate and shallowly depressed down the middle, the 
median groove terminating anteriorly in «a transverse sulcus, the nasal plate triangular, the scrobes long 
and descending; eyes prominent ; antenne with joint 2 of the funiculus slightly longer than 1, the club 
as long as 8-7 united. Prothorax not so long as broad, rounded at the sides, constricted in front and 
narrowed behind; vibrisse long. Elytra much broader than the prothorax, moderately elongate, 
subparallel in ¢, widening to the middle in 9, flattened on the disc, acuminate and dehiscent at the 
tip, the bare, interlocking, coriaceous lower margin of the suture thus being exposed for a short distance ; 
finely punctate-striate, the interstices flat. Anterior tibiz unguiculate and feebly denticulate, moderately 
long in the two sexes. 
Length 73-84, breadth 22-32 millim. (¢ @.) 
Hab. Costa Rica, Savanillas de Pirris (Underwood: 2); Panama, Volcan de Chiriqui 
3000 feet (Champion: ¢ ). 
One pair, the male somewhat immature and with conspicuous seriate punctures on 
the elytra. The sculpture of the surface is almost completely hidden in the female by 
the dense vestiture. This beautiful insect is clothed with glittering metallic scales, 
like Hadromerus scintillans and its allies, but the anterior coxe are well separated 
and the species therefore cannot be included in Hadromerus. ‘The transverse inter- 
antennal groove is deep. 
